Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

General Chemistry (478)
Chemistry AllOther (190)

Chemistry Interview Questions

Questions Answers Views Company eMail

While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

2874

which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

Hetero,

2165

In which cases factor of KF Reaget got higher side

2 6598

Why sucrose used in calibration of polarimeter

Lupin,

1 4506

what is the concept for adjustment of pH in HPLC buffer solution ? a. Common ion effect b. Counter ion effect and explain me, how we adapt this principles & what is the role of these principles in our method

Apex, Pentagon Labs,

1 3510

What is the difference between BD

1 3211

why water content test performed

1 6205

What is peak purity and response factor in chromatographic analysis? Why we required to find out response factor?

2 7378

What are modes of quantification in related substances

Hospira,

2171

what is the source of ir spectroscopy

CTX Life Sciences, Mylan,

2 7515

Difference Between End Cap HPLC Column and Non End Cap Column

2 14709

What precaution u take when doing rs preparing

DRL,

2144

Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18

Petronas, Shanghai Ocean University,

1925

How would you decide dissolution medium for NCE compound of class I drug

2267

which gas is called laughing gas?

2 4876

Un-Answered Questions { Chemistry }

Why is ammonia solution added while preparing edta solution?

1392

why multimedia dissolution require to do?

838

how pda detector works over uv?

745

why digestion require in icpms?

779

Define hydra?

1076

Colorimtry

1670

[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

810

What are the methods used to control the corrosion? : Electrochemistry Corrosion

1025

What happens when the excess of stannous chloride is not removed

1127

How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?

1781

Why to use propyl paraben in HPLC gradient calibration

7499

what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means

1977

Explain what are enzymes?

1169

What is meant by ph of a solution?

1042

Why are olefins (alkenes) good monomers for polymerization reactions? : Polymer Chemistry

1402

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